CN103511651A - Multistage grinding wheel type regulating valve - Google Patents
Multistage grinding wheel type regulating valve Download PDFInfo
- Publication number
- CN103511651A CN103511651A CN201310450406.5A CN201310450406A CN103511651A CN 103511651 A CN103511651 A CN 103511651A CN 201310450406 A CN201310450406 A CN 201310450406A CN 103511651 A CN103511651 A CN 103511651A
- Authority
- CN
- China
- Prior art keywords
- sealing
- valve
- driving wheel
- wheel
- valve seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004519 grease Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910001651 emery Inorganic materials 0.000 description 9
- 239000000243 solution Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a multistage grinding wheel type regulating valve which comprises a valve body. A valve barrel is arranged in the valve body, a regulating rod is perpendicularly inserted in the valve barrel, a regulating portion is arranged on the lower side of the regulating rod, a sealing driven wheel, a sealing driving wheel and a valve seat are sequentially arranged in the regulating portion from top to bottom in a penetrating mode, the sealing driven wheel and the valve seat are clamped onto the inner wall of the valve barrel, the sealing driving wheel and the regulating rod are fixed, the sealing driven wheel, the sealing driving wheel and the valve seat are provided with corresponding vertical through holes, the through hole in the sealing driven wheel is communicated with a water inlet, the through hole in the valve seat is communicated with a water outlet, an annular sealing driving wheel supporting ring is arranged between the sealing driven wheel and the valve seat, and the height of the annular sealing driving wheel supporting ring is larger than that of the sealing driving wheel. According to the multistage grinding wheel type regulating valve, due to the fact that the sealing driving wheel supporting ring is arranged between the sealing driven wheel and the valve seat, pressure of fluid can only act on the sealing driving wheel supporting ring and will not act on the sealing driving wheel in the process of regulation, therefore, friction force generated in the process of regulation is greatly reduced, the use effect is guaranteed, and service life is prolonged.
Description
Technical field
The present invention relates to modulating valve, be specifically related to multistage grinding-wheel type regulating valve.
Background technique
At present, the oil-field flooding displacement of reservoir oil mainly adopts regulating valve to control injection flow.Such as grinding-wheel type regulating valve: grinding-wheel type regulating valve is formed with flowing medium entrance in a side, opposite side is formed with flowing medium outlet.In the valve pocket inside of valve body, be provided with lower emery wheel and upper emery wheel.In lower emery wheel and upper emery wheel, be symmetrically formed the throttle orifice of communication of fluid medium inlet and flowing medium outlet, two symmetrical rotatablely moving of emery wheel, by changing two throttle orifice docking actual internal areas that emery wheel is symmetrical, carry out the adjusting of flow.
But, there is in process of production certain defect in existing grinding-wheel type regulating valve, upper due to existing grinding-wheel type regulating valve, lower grinding wheel contact surface often rubs, and fluid produces certain pressure to emery wheel, make, lower emery wheel is close together all the time, strengthened frictional strength, more than institute, lower grinding wheel contact surface is easy to produce wearing and tearing because of friction, leak, have influence on the control to the oil-field flooding water yield, also increase valve switch moment of torsion and increased output power of motor, but cause the waste of electric power resource, also directly affect the working life of Intelligent flow controller and grinding-wheel type regulating valve.Meanwhile, under the operating mode of high pressure, the valve rod of emery wheel modulating valve because of the valve stem seal failure phenomenon that wearing and tearing cause of common occurrence.
Summary of the invention
Technical problem to be solved by this invention is that to solve the frictional force that traditional grinding-wheel type regulating valve produces in use excessive, thereby affect using effect, the problem in reduction working life.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is to provide a kind of multistage grinding-wheel type regulating valve, comprise valve body, its outer side surface is provided with water intake and water outlet, its inside is provided with valve barrel, described water intake and water outlet are connected with valve barrel respectively, in described valve barrel, be vertically fitted with adjustable lever, its upper end is fixed with the drive unit that is arranged at described valve barrel top, its downside is provided with adjusting portion, described adjusting portion is coated with quiet wheel of sealing from top to bottom successively, sealing driving wheel and valve seat, the quiet wheel with valve seat of described sealing is installed on the inwall of described valve barrel, described sealing driving wheel and adjustable lever fix, described sealing is quiet to be taken turns, sealing driving wheel and valve seat are provided with corresponding vertical through hole, the quiet through hole of taking turns of described sealing is connected with water intake, through hole on described valve seat is connected with water outlet, described sealing is quiet take turns and valve seat between be also provided with annular sealing driving wheel bracing ring, described sealing driving wheel bracing ring is set in sealing driving wheel outside, and be installed on the inwall of described valve barrel, it is highly greater than the height of described sealing driving wheel, its end face is resisted against described sealing Jing Lun bottom surface, its bottom surface is resisted against the end face of described valve seat.
In such scheme, on the end face of described sealing driving wheel and bottom surface, be equipped with stainless steel wearing layer.
In such scheme, in described adjusting portion, install and be fixed with annular sealing seat, between described sealing seat and adjustable lever, for the ，Qi bottom surface that is tightly connected is resisted against on the quiet end face of taking turns of described sealing, which is provided with and the quiet corresponding vertical through hole of through hole of taking turns of described sealing.
In such scheme, between described adjustable lever upper outside surfaces and described valve barrel inwall, be provided with sealed letter.
In such scheme, on described adjustable lever, be coated with the bottom surface that spring ，Qi upper end is resisted against described sealed letter, lower end abutment is in the end face of described sealing seat.
In such scheme, all side external surfaces of described adjustable lever scribble seal grease.
The present invention, because sealing quiet take turns and valve seat between be provided with sealing driving wheel bracing ring, when regulating, the pressure of fluid only can act on sealing driving wheel bracing ring, and can not act on sealing driving wheel, the frictional force having produced while greatly having reduced to regulate, has increased working life when having guaranteed using effect.
Accompanying drawing explanation
Fig. 1 is generalized section of the present invention;
In figure: 1-drive unit, 2-valve barrel, 21-water intake, 22-water outlet, 3-adjustable lever, 4-seal quiet wheel, 5-sealing driving wheel, 6-valve seat, 7-sealing driving wheel bracing ring, 8-sealing seat, 9-sealed letter, 10-spring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, multistage grinding-wheel type regulating valve provided by the invention, comprise valve body, its outer side surface is provided with water intake 21 and water outlet 22, its inside is provided with valve barrel 2, water intake 21 and water outlet divide 22 not to be connected with valve barrel 2, the interior adjustable lever 3 that is vertically fitted with of valve barrel 2, its upper end is fixing with the drive unit 1 that is arranged at valve barrel 2 tops, its downside is provided with adjusting portion, adjusting portion is coated with successively from top to bottom sealing and quietly takes turns 4, sealing driving wheel 5 and valve seat 6, seal quiet take turns 4 and valve seat 6 be installed on the inwall of valve barrel 2, sealing driving wheel 5 fixes with adjustable lever 3, on the end face of sealing driving wheel 5 and bottom surface, be equipped with stainless steel wearing layer, sealing driving wheel 5 wear resistancies have been increased, thereby lengthened working life.Seal and quietly take turns 4, sealing driving wheel 5 and valve seat 6 are provided with corresponding vertical through hole, sealing quiet through hole of taking turns on 4 is connected with water intake 21, through hole on valve seat 6 is connected with water outlet 22, seal quiet take turns 4 and valve seat 6 between be also provided with annular sealing driving wheel bracing ring 7, sealing driving wheel bracing ring 7 is set in sealing driving wheel 5 outsides, and sealing driving wheel bracing ring is than the high 0.02-0.04mm of sealing driving wheel height, seal and be installed on the inwall of valve barrel 2, it is highly greater than the height of sealing driving wheel 5, its end face is resisted against quiet 4 the bottom surface of taking turns of sealing, its bottom surface is resisted against the end face of valve seat 6.In adjusting portion, install and be fixed with annular sealing seat 8, between sealing seat 8 and adjustable lever 3 for being tightly connected, its bottom surface is resisted against that sealing is quiet to be taken turns on 4 end face, which is provided with and seal the quiet corresponding vertical through hole of 4 through holes of taking turns, thereby can prevent that by sealing seat 8 filling liquid from affecting using effect from the quiet gap leakage of taking turns 4 joint of adjustable lever 3 and sealing.Between adjustable lever 3 upper outside surfaces and valve barrel 2 inwalls, be provided with sealed letter 9, prevent from injecting solution and reveal from upper end.On adjustable lever 3, be coated with the bottom surface that spring 10，Qi upper end is resisted against sealed letter 9, lower end abutment is in the end face of sealing seat 8, and spring 10 is given respectively sealed letter 9 and 8 one active forces of sealing seat, further increases the sealing of this device.All side external surfaces of adjustable lever 3 scribble seal grease, when strengthening sealing, can also reduce the frictional force producing while using.
When adjust flux, only need by drive unit 1 rotary regulating lever 3, adjustable lever 3 drives sealing seat 8 and sealing driving wheel 5 to rotate when rotating, by the rotation of sealing seat 8 and sealing driving wheel 5, can change the cross-section area of runner, thereby realize the function that changes flow, simultaneously because sealing the existence of driving wheel bracing ring 7, sealing driving wheel 5 can be under the active force of fluid, optionally fit valve seat 6 or seal and quietly take turns 4 also can come back in runner and bring fine sand etc. because of fluid back pressure under the effect of fluid.On adjustable lever, scribble seal grease, the in the situation that of wearing and tearing generation seal failure, can automatically produce sealing effect, 3 sealings of auxiliary adjustment bar, the while has also been reduced the frictional force of adjustable lever 3.The present invention, because sealing quiet take turns 4 with valve seat 6 between be provided with and seal driving wheel bracing ring 7, when reconciling, the pressure of fluid only can act on sealing driving wheel bracing ring 7, and can not act on sealing driving wheel 5, the frictional force having produced while greatly having reduced to regulate, has increased working life when having guaranteed using effect.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technological scheme with the present invention, within all falling into protection scope of the present invention.
Claims (6)
1. multistage grinding-wheel type regulating valve, comprise valve body, its outer side surface is provided with water intake and water outlet, its inside is provided with valve barrel, described water intake and water outlet are connected with valve barrel respectively, it is characterized in that, in described valve barrel, be vertically fitted with adjustable lever, its upper end is fixed with the drive unit that is arranged at described valve barrel top, its downside is provided with adjusting portion, described adjusting portion is coated with quiet wheel of sealing from top to bottom successively, sealing driving wheel and valve seat, the quiet wheel with valve seat of described sealing is installed on the inwall of described valve barrel, described sealing driving wheel and adjustable lever fix, described sealing is quiet to be taken turns, sealing driving wheel and valve seat are provided with corresponding vertical through hole, the quiet through hole of taking turns of described sealing is connected with water intake, through hole on described valve seat is connected with water outlet, described sealing is quiet take turns and valve seat between be also provided with annular sealing driving wheel bracing ring, described sealing driving wheel bracing ring is set in sealing driving wheel outside, and be installed on the inwall of described valve barrel, it is highly greater than the height of described sealing driving wheel, its end face is resisted against described sealing Jing Lun bottom surface, its bottom surface is resisted against the end face of described valve seat.
2. multistage grinding-wheel type regulating valve as claimed in claim 1, is characterized in that, is equipped with stainless steel wearing layer on the end face of described sealing driving wheel and bottom surface.
3. multistage grinding-wheel type regulating valve as claimed in claim 1, it is characterized in that, in described adjusting portion, install and be fixed with annular sealing seat, between described sealing seat and adjustable lever for being tightly connected, its bottom surface is resisted against on the quiet end face of taking turns of described sealing, which is provided with and the quiet corresponding vertical through hole of through hole of taking turns of described sealing.
4. multistage grinding-wheel type regulating valve as claimed in claim 1, is characterized in that, between described adjustable lever upper outside surfaces and described valve barrel inwall, is provided with sealed letter.
5. the multistage grinding-wheel type regulating valve as described in claim 3 or 4, is characterized in that, is coated with the bottom surface that spring ，Qi upper end is resisted against described sealed letter on described adjustable lever, and lower end abutment is in the end face of described sealing seat.
6. multistage grinding-wheel type regulating valve as claimed in claim 1, is characterized in that, all side external surfaces of described adjustable lever scribble seal grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450406.5A CN103511651B (en) | 2013-09-26 | 2013-09-26 | Multistage grinding-wheel type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450406.5A CN103511651B (en) | 2013-09-26 | 2013-09-26 | Multistage grinding-wheel type regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103511651A true CN103511651A (en) | 2014-01-15 |
| CN103511651B CN103511651B (en) | 2015-12-02 |
Family
ID=49894859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450406.5A Active CN103511651B (en) | 2013-09-26 | 2013-09-26 | Multistage grinding-wheel type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511651B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847913A (en) * | 2015-04-03 | 2015-08-19 | 浙江精华测控设备有限公司 | Grinding wheel type adjusting valve |
| CN109404553A (en) * | 2018-11-07 | 2019-03-01 | 开平市沃特卫浴有限公司 | A kind of spool and the device using the spool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2049874A (en) * | 1933-08-21 | 1936-08-04 | Miami Abrasive Products Inc | Slotted abrasive wheel |
| CN2510683Y (en) * | 2001-09-25 | 2002-09-11 | 中国石化胜利油田有限公司采油工艺研究院 | Brush-wheel type liquid valve |
| CN2619101Y (en) * | 2003-05-28 | 2004-06-02 | 余金海 | High pressure throttle check valve |
| CN202249995U (en) * | 2011-08-23 | 2012-05-30 | 天津市万众科技发展有限公司 | Grinding-wheel type regulating valve of inlaid anti-backflow device |
| CN202834360U (en) * | 2012-10-25 | 2013-03-27 | 浙江联大阀门有限公司 | Cage type regulating valve |
| CN202901509U (en) * | 2012-10-10 | 2013-04-24 | 南通龙源电站阀门有限公司 | Balanced type regulating valve |
| CN203516791U (en) * | 2013-09-26 | 2014-04-02 | 浙江金龙自控设备有限公司 | Grinding wheel type multistage regulating valve |
-
2013
- 2013-09-26 CN CN201310450406.5A patent/CN103511651B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2049874A (en) * | 1933-08-21 | 1936-08-04 | Miami Abrasive Products Inc | Slotted abrasive wheel |
| CN2510683Y (en) * | 2001-09-25 | 2002-09-11 | 中国石化胜利油田有限公司采油工艺研究院 | Brush-wheel type liquid valve |
| CN2619101Y (en) * | 2003-05-28 | 2004-06-02 | 余金海 | High pressure throttle check valve |
| CN202249995U (en) * | 2011-08-23 | 2012-05-30 | 天津市万众科技发展有限公司 | Grinding-wheel type regulating valve of inlaid anti-backflow device |
| CN202901509U (en) * | 2012-10-10 | 2013-04-24 | 南通龙源电站阀门有限公司 | Balanced type regulating valve |
| CN202834360U (en) * | 2012-10-25 | 2013-03-27 | 浙江联大阀门有限公司 | Cage type regulating valve |
| CN203516791U (en) * | 2013-09-26 | 2014-04-02 | 浙江金龙自控设备有限公司 | Grinding wheel type multistage regulating valve |
Non-Patent Citations (1)
| Title |
|---|
| 高健等: "新型流量自动调节阀的研制", 《石油及矿场机械》, vol. 32, no. 4, 30 April 2003 (2003-04-30), pages 13 - 15 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847913A (en) * | 2015-04-03 | 2015-08-19 | 浙江精华测控设备有限公司 | Grinding wheel type adjusting valve |
| CN104847913B (en) * | 2015-04-03 | 2017-06-13 | 浙江精华测控设备有限公司 | A kind of grinding-wheel type regulating valve |
| CN109404553A (en) * | 2018-11-07 | 2019-03-01 | 开平市沃特卫浴有限公司 | A kind of spool and the device using the spool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103511651B (en) | 2015-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN103511651B (en) | Multistage grinding-wheel type regulating valve | |
| CN204647452U (en) | A kind of nuclear power pressure adjustment type safety check | |
| CN203516791U (en) | Grinding wheel type multistage regulating valve | |
| CN201666401U (en) | High-pressure constant-flow adjusting valve | |
| CN201731134U (en) | Pressure reducing valve | |
| CN204239784U (en) | A kind of emery wheel modulating valve with emery wheel lubricating structure | |
| CN105387226A (en) | Self-sealing type flow regulating valve | |
| CN203335949U (en) | Lifting type check valve | |
| CN202629100U (en) | High-pressure block valve | |
| CN204459216U (en) | High-pressure self-balance self-sealing piston formula regulates throttling stop valve | |
| CN203146924U (en) | Maintainable lift check valve | |
| CN211715800U (en) | Straight-through regulating valve internal part capable of being tightly shut off under particle working condition | |
| CN203309328U (en) | Improved water supply regulating valve | |
| CN208793706U (en) | A kind of lining fire safe type high temperature tee joint butterfly valve | |
| CN202531142U (en) | Salvage-free adjustable water nozzle | |
| CN208281549U (en) | A kind of IC card flow control low-power consumption ball valve | |
| CN202441928U (en) | Y-shaped multifunctional valve | |
| CN201739535U (en) | Pneumatic electric stop unloading valve | |
| CN201071961Y (en) | Ball check valve | |
| CN206368972U (en) | A kind of novel cutoff valve | |
| CN105134988A (en) | Stop valve with flow regulating function | |
| CN110762261A (en) | Multifunctional industrial valve | |
| CN203703199U (en) | Plug-type parallel-splayed gate valve | |
| CN208651728U (en) | A kind of oil exploitation regulating valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151021 Address after: 325000 Zhejiang province Ruian City Feiyun Street District People Feiyun Road No. 518 Applicant after: ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Address before: 325000 Wenzhou City, Ruian province Ting Tian Town, No. 434 Middle Road, No. Applicant before: Yu Jinhai |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Multi stage grinding wheel type regulating valve Effective date of registration: 20220708 Granted publication date: 20151202 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Registration number: Y2022500000041 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230713 Granted publication date: 20151202 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Registration number: Y2022500000041 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Multistage grinding wheel type regulating valve Effective date of registration: 20230816 Granted publication date: 20151202 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Plaza Science and Technology Branch Pledgor: ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Registration number: Y2023980052290 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |